Welding apparatus



FIG. 1 is a front elevational view of the welding apparatus;

FIG. 2 is a rear elevational view of the welding apparatus;

FIG. 3 is a right side view of the welding apparatus;

FIG. 4 is a left side view of the welding apparatus;

FIG. 5 is a top view of the welding apparatus;

FIG. 6 is a bottom view of the welding apparatus;

FIG. 7 is a front elevational view of the welding apparatus;

FIG. 8 is a rear elevational view of the welding apparatus;

FIG. 9 is a right side view of the welding apparatus;

FIG. 10 is a left side view of the welding apparatus;

FIG. 11 is a top view of the welding apparatus; and,

FIG. 12 is a bottom view of the welding apparatus. 

The ornamental design for a welding apparatus, as shown. 